/**
 * Created by 510 on 2018/4/8.
 */
public class Test {
    public static void main(String args[]) {
        CPU cpu;
        cpu = new CPU(2200);
        HardDisk HD;
        HD = new HardDisk(200);
        PC pc;
        pc = new PC(cpu);
        pc = new PC(HD);
        pc = new PC(cpu,HD);
    }
}
